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Illusion [34]
3 years ago
15

Given the QY’=4.125, what is QY?

Mathematics
1 answer:
Goryan [66]3 years ago
3 0

Answer:

Step-by-step explanation:

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Simplify |-3-81<br> 0 A -11<br> O B. 5<br> O c. 5<br> O D. 11<br> Simplify |-3 - 8|
9966 [12]

Answer:

c

Step-by-step explanation:

8 0
3 years ago
How can you solve y=-2x+20 by substitution?
levacccp [35]

Answer:

subtract from both sides and then multiplying both sides

Step-by-step explanation:

how can you solve y = -2x + 25 by subtraction

8 0
3 years ago
A box is to be made where the material for the sides and the lid cost​ $0.20 per square foot and the cost for the bottom is ​$0.
Reika [66]

Answer:

The dimension of the box is l×w×h =  (2.274 × 2.274 × 1.934) ft³

Step-by-step explanation:

From the given information;

Let a be the cost of the box

Let b  be one side of the square base ;    &

h to be the height  of the box

We know that the volume of the box = 10 cubic feet

Then;

a²h = 10

h = 10/a²

The base = (0.65)a²

The top = (0.2)a²

The side = (0.2) a × 25/a²

= 5/a

For the four sides of the box now ;

= (0.2) 4a × 25/a²

= 0.8  × 25/a

= 20 /a

The total cost of the box is:

b = 0.65a² + 0.2a² + 20 /a

b = 0.85 a² + 20 /a

Taking differential of b with respect to a ;we have:

db/da = 1.7a - 1/a²(20) = 0

1.7 a³ - 20 = 0

1.7 a³  = 20

a³ = 20/1.7

a³ = 11.77

a = \sqrt[3]{11.77}

a = 2.274 ft

Thus; the cost for the base of the box = (0.65)a²

the cost for the base of the box =(0.65) × ( 2.274)²

the cost for the base of the box = 3.362

The top of the box = (0.2)a²

The top of the box = (0.2)× ( 2.274)²

The top of the box = 1.034

The four sides of the box = 20 /a

The four sides of the box = 20/2.274

The four sides of the box = 8.795

the total cost = b = 0.85 a² + 20 /a

the total cost = 0.85 (2.274)² + 20 /2.274

the total cost = 4.395 + 8.795

the total cost = 13.19

Recall that:

the volume of the box = 10 cubic feet

Then;

a²h = 10

h = 10/a²

h = 10/ 2.274²

h  1.934

The dimension of the box is l×w×h =  (2.274 × 2.274 × 1.934) ft³

7 0
3 years ago
What is 4 to the second power times 4 to the fifth power
Tpy6a [65]

Answer:

none

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Suppose that G(X) = F(x + 2). Which statement best compares the graph of
nignag [31]

Answer:

A

Step-by-step explanation:

If you have to add 2 to X to get it back to the original, it started out 2 to the left.  (It would seem like it ought to be C, but when you add an subtract from the x value in functions, it's opposite of what you might think.)

6 0
3 years ago
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